Air compressor



FIG. 1 is a perspective view taken from the top, front and left side of an air compressor embodying our new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line representations of vents and ports in FIGS. 1, 2, 3, 4, 5, 6 and 7 are for purposes of illustration only and form no part of the claimed design. 

The ornamental design for an air compressor, as shown and described. 